Chords and other Basics

[DropkickMurphy]

I need help understanding the correct finger placement for chords and how to switch from one to another rapidly. I also dont know what palm muting is. Help if you can. Thanks

[Lordathestrings]

click these:

>chords (http://www.guitartricks.com/lesson.php?input=8543)< (the first of 9 lessons)

>palm muting (http://www.guitartricks.com/forum/showthread.php?t=13477)<